Welcome to the Breitling Navitimer Slide Rule Wikispace

On these pages are, I hope, EASY to follow instructions on how to use the slide rule on Breitling Navitimer watch bezels. I have a 2009 vintage Breitling Navitimer World, so the instructions and index marks mentioned are for that particular model, but it appears that all modern Navitimer slide rule watch bezels are similar.

I am a High School Science teacher by trade, and have designed these instructions to help the greatest number of users. I will however; gladly entertain suggestions for improvement.

How to use this Wikispace:

In the window to the left, is a list of all the pages that are on this space. Each page is a set of instructions for competing a given task with the slide rule. For instance the first operation page will show you how to do multiplication with the slide rule, the second operation page will describe division, etc. There is no need to follow the pages consecutively, however you MUST understand the information on the Ground Rules page before you will be able to fully participate on any of the operation pages. As I think of more uses for the slide rule, I intend on adding them.


I am in no way, shape, or form affiliated with Breitling (though if they would like to send me something in gratitude, I'd love a Super Avenger watch, or a Breitling Jacket...). If Breitling feel I am impeding their ability to make money by having this wikispace, I will gladly delete it. This wikispace is for informational/educational purposes only. Use this information carefully. The best you can expect from the slide rule calculations is one decimal place accuracy, and that in only a very few instances. Please do not rely on using the silde rule for navigational purposes, or anything that could be a matter of life and death. I am not responsible for anyone misusing this information.

Good Luck, and I hope you find many ways to have fun using your Breitling Navitimer slide rule!